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How to set HTTP headers (for cache-control)?
...o be HTTP/1.1 compliant. Also see EXPIRES.
Note: It may be better to specify cache commands in HTTP than in META statements, where they can influence more than the browser, but proxies and other intermediaries that may cache information.
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Converting NumPy array into Python List structure?
....int32 or np.float32) to the "nearest compatible Python type" (in a list). If you want to preserve the numpy data types, you could call list() on your array instead, and you'll end up with a list of numpy scalars. (Thanks to Mr_and_Mrs_D for pointing that out in a comment.)
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putting datepicker() on dynamically created elements - JQuery/JQueryUI
... I think you'd be OK with the .datapicker() because it will probably check if a datepicker is created before trying to recreate. With other code you might not have this grace. Also, .on( is only introduced in JQuery 1.7 - so make sure you're using the correct version.
– Tr1sta...
Get yesterday's date in bash on Linux, DST-safe
...that switching between summer and winter time is always done during night, if I understand correctly?
– Nicolas Raoul
Mar 28 '17 at 3:38
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How to put an image in div with CSS?
...nt/
This has been tested on Chrome, firefox and Safari. (I'm on a mac, so if someone has the result on IE, tell me to add it)
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Unable to install gem - Failed to build gem native extension - cannot load such file — mkmf (LoadErr
... 12.04
Usually, the solution is:
sudo apt-get install ruby-dev
Or, if that doesn't work, depending on your ruby version, run something like:
sudo apt-get install ruby1.9.1-dev
Should fix your problem.
Still not working? Try the following after installing ruby-dev:
sudo apt-get i...
What is the X-REQUEST-ID http header?
...en you're operating a webservice that is accessed by clients, it might be difficult to correlate requests (that a client can see) with server logs (that the server can see).
The idea of the X-Request-ID is that a client can create some random ID and pass it to the server. The server then include th...
Read and overwrite a file in Python
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If you don't want to close and reopen the file, to avoid race conditions, you could truncate it:
f = open(filename, 'r+')
text = f.read()
text = re.sub('foobar', 'bar', text)
f.seek(0)
f.write(text)
f.truncate()
f.close()
Th...
Better way to revert to a previous SVN revision of a file?
...thing - say, I'm at revision 855, I want to revert a file to revision 854. If I do svn merge -c -854 my.file, and then do svn diff, it seems to show one revision before 854 (that is, 853); only when I do svm merge -c 854 myfile (without the -), it looks like myfile is reverted to rev 854. Thanks aga...
How to delete a certain row from mysql table with same column values?
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This only deletes one row. If there were 3 with this user and product id then 2 would remain.
– Rob
Aug 22 '13 at 10:48
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